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प्रश्न
Which of the following energy change involves frictional force?
विकल्प
chemical energy to heat energy
kinetic energy to heat energy
potential energy to sound energy
chemical energy to kinetic energy
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उत्तर
Frictional force is responsible for heating up of the tires of a moving vehicle. In such a situation, kinetic energy is converted into heat energy due to the frictional force.
Therefore the answer is, (b) Kinetic energy to heat energy.
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